KAKAPO

Not only has the kakapo forgotten how to fly, but it has forgotten that it has forgotten how to fly.
There is something gripping about the idea that this creature has actually given up doing something that virtually every human being has yearned to do since the very first of us looked upwards. I think I find other birds rather irritating for the cocky ease with which they flit through the air as if it was nothing.
(Douglas Adams)